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rpm measurement

J

Thread Starter

jobinjoseph

Joined Mar 15, 2014
1
i like to know how to check moc7811 and how to use it for counting rpm.i try to find it by using the following ckt....bt even the conter is not working properly...i like it to use as my miniproject
 
MaxHeadRoom

MaxHeadRoom

Joined Jul 18, 2013
28,681
No circuit shown?
Fairly easy to set up, there is many shown in the Google 'Images for MOC7811'.
You need a slotted wheel of some kind of course.
More project info needed!
Max.
 
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